﻿// Copyright (c) 2021 Timothé Lapetite - nebukam@gmail.com
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.

using System.Collections.Generic;

namespace Nebukam
{

    public interface IPoolItem
    {
        void Release();
    }

    public interface IRequireCleanUp : IPoolItem
    {
        void CleanUp();
    }

    public interface IRequireInit : IPoolItem
    {
        void Init();
    }

    internal interface IPoolNode : IPoolItem
    {
        IPoolNode __prevNode { get; set; }
        bool __released { get; set; }
    }

    public abstract class PoolItem : IPoolNode
    {

        internal List<Pool.OnItemReleased> __onRelease = null;
        IPoolNode IPoolNode.__prevNode { get; set; } = null;
        bool IPoolNode.__released { get; set; } = false;

        public void Release()
        {
            Pool.ReturnNode(this);
        }

        public static implicit operator bool(PoolItem item)
        {
            return !(item as IPoolNode).__released;
        }

    }

}
